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SUEMATSU Nobuhiko
Department Undergraduate School , School of Interdisciplinary Mathematical Sciences Position Professor |
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| Language | English |
| Publication Date | 2021/02 |
| Type | Academic Journal |
| Peer Review | Peer reviewed |
| Title | Electric field assisted motion of a mercury droplet. |
| Contribution Type | Co-authored (other than first author) |
| Journal | Scientific reports |
| Journal Type | Another Country |
| Volume, Issue, Page | 11(1),pp.2753 |
| Total page number | 11 |
| International coauthorship | International coauthorship |
| Author and coauthor | Holló Gábor, Suematsu Nobuhiko J, Ginder Elliott, Lagzi István |
| Details | Field-assisted self-assembly, motion, and manipulation of droplets have gained much attention in the past decades. We exhibit an electric field manipulation of the motion of a liquid metal (mercury) droplet submerged in a conductive liquid medium (a solution of sulfuric acid). A mercury droplet moves toward the cathode and its path selection is always given by the steepest descent of the local electric field potential. Utilizing this unique behavior, we present several examples of droplet motions, including maze solving, electro-levitation, and motion on a diverted path between parallel electrodes by controlling the conductivity of the medium. We also present an experimental demonstration of Fermat's principle in a non-optical system, namely a mercury droplet moving along a refracted path between electrodes in a domain having two different conductivities. |
| DOI | 10.1038/s41598-020-80375-1 |
| ISSN | 2045-2322 |
| PMID | 33531526 |